Ligand exchange and MIP-based paraoxon memories onto QCM sensor

Ebru Birlik Özkütük; Sibel Emir Diltemiz; Elif Özalp; Lokman Uzun; Arzu Ersöz

doi:10.1007/s00339-014-8974-2

Ligand exchange and MIP-based paraoxon memories onto QCM sensor

Ebru Birlik Özkütük
, Sibel Emir Diltemiz
, Elif Özalp
, Lokman Uzun
, Arzu Ersöz

Division of Biochemistry

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

In this study, we have aimed to prepare quartz crystal microbalance (QCM) sensor using paraoxon-imprinted particles. Firstly, methacryloyl antipyrine (MAAP)-based metal–chelate-coordinated pre-complex has been prepared and used for paraoxon templation. Then, paraoxon-imprinted nanofilms were formed on QCM sensor after modification of the gold surfaces with allyl mercaptan. By this way, specific and selective memories, which depend on metal–chelate interactions between Eu(III) ions and template, for paraoxon molecules have been obtained on the electrode surface. QCM sensor has characterized using AFM and ellipsometer. The detection limit and the affinity constant have found to be 0.09 μM and 5.71 × 10³ M⁻¹ for MAAP–Eu paraoxon-based nanofilm, respectively. The specificity of the QCM sensor has shown using parathion as a competitor molecule.

Original language	English
Pages (from-to)	351-357
Number of pages	7
Journal	Applied Physics A: Materials Science and Processing
Volume	119
Issue number	1
DOIs	https://doi.org/10.1007/s00339-014-8974-2
Publication status	Published - Apr 2015

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title = "Ligand exchange and MIP-based paraoxon memories onto QCM sensor",

abstract = "In this study, we have aimed to prepare quartz crystal microbalance (QCM) sensor using paraoxon-imprinted particles. Firstly, methacryloyl antipyrine (MAAP)-based metal–chelate-coordinated pre-complex has been prepared and used for paraoxon templation. Then, paraoxon-imprinted nanofilms were formed on QCM sensor after modification of the gold surfaces with allyl mercaptan. By this way, specific and selective memories, which depend on metal–chelate interactions between Eu(III) ions and template, for paraoxon molecules have been obtained on the electrode surface. QCM sensor has characterized using AFM and ellipsometer. The detection limit and the affinity constant have found to be 0.09 μM and 5.71 × 103 M−1 for MAAP–Eu paraoxon-based nanofilm, respectively. The specificity of the QCM sensor has shown using parathion as a competitor molecule.",

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AU - Birlik Özkütük, Ebru

AU - Emir Diltemiz, Sibel

AU - Özalp, Elif

AU - Uzun, Lokman

AU - Ersöz, Arzu

PY - 2015/4

Y1 - 2015/4

N2 - In this study, we have aimed to prepare quartz crystal microbalance (QCM) sensor using paraoxon-imprinted particles. Firstly, methacryloyl antipyrine (MAAP)-based metal–chelate-coordinated pre-complex has been prepared and used for paraoxon templation. Then, paraoxon-imprinted nanofilms were formed on QCM sensor after modification of the gold surfaces with allyl mercaptan. By this way, specific and selective memories, which depend on metal–chelate interactions between Eu(III) ions and template, for paraoxon molecules have been obtained on the electrode surface. QCM sensor has characterized using AFM and ellipsometer. The detection limit and the affinity constant have found to be 0.09 μM and 5.71 × 103 M−1 for MAAP–Eu paraoxon-based nanofilm, respectively. The specificity of the QCM sensor has shown using parathion as a competitor molecule.

AB - In this study, we have aimed to prepare quartz crystal microbalance (QCM) sensor using paraoxon-imprinted particles. Firstly, methacryloyl antipyrine (MAAP)-based metal–chelate-coordinated pre-complex has been prepared and used for paraoxon templation. Then, paraoxon-imprinted nanofilms were formed on QCM sensor after modification of the gold surfaces with allyl mercaptan. By this way, specific and selective memories, which depend on metal–chelate interactions between Eu(III) ions and template, for paraoxon molecules have been obtained on the electrode surface. QCM sensor has characterized using AFM and ellipsometer. The detection limit and the affinity constant have found to be 0.09 μM and 5.71 × 103 M−1 for MAAP–Eu paraoxon-based nanofilm, respectively. The specificity of the QCM sensor has shown using parathion as a competitor molecule.

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Ligand exchange and MIP-based paraoxon memories onto QCM sensor

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